sbase/util/eprintf.c
sin 078fce3f77 Always print the program name
This is generally very useful for sbase, especially when we
hit some case that is not implemented and we want to know which
program failed.
2013-11-14 19:00:28 +00:00

63 lines
935 B
C

/* See LICENSE file for copyright and license details. */
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../util.h"
char *argv0;
static void venprintf(int, const char *, va_list);
void
eprintf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
venprintf(EXIT_FAILURE, fmt, ap);
va_end(ap);
}
void
enprintf(int status, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
venprintf(status, fmt, ap);
va_end(ap);
}
void
venprintf(int status, const char *fmt, va_list ap)
{
fprintf(stderr, "%s: ", argv0);
vfprintf(stderr, fmt, ap);
if(fmt[0] && fmt[strlen(fmt)-1] == ':') {
fputc(' ', stderr);
perror(NULL);
}
exit(status);
}
void
weprintf(const char *fmt, ...)
{
va_list ap;
fprintf(stderr, "%s: ", argv0);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
if (fmt[0] && fmt[strlen(fmt)-1] == ':') {
fputc(' ', stderr);
perror(NULL);
}
}